The Swiss national cycle route netwrk as of Veloland Schweiz consists of nine (Nr. 1-9) national routes, 53 (Nr. 21..99) regional routes and 59 local routes. A list of the routes can be found on Wikipedia. The network is built with a lot of street signs so following them on the streets is easy.

A very detailed map of the different routes Veloland Schweiz (for inspiration only, particularly since there are occasionally differences between the sign posted routes and this map)

IMPORTANT: the national and regional routes may have substantial parts that are not race bike compatible. The inline skating routes and some of local routes may be better for such purposes.

To do:

Complete the routes, that are incomplete yet. Some of the information doesn't seem up to date.

Rendering

The cycle map has severe performance problems, you should not expect the data to be up to date or expect map changes and additions to be rendered in timeframes comparable to the other OSM provided maps. The following text is from the operator of the opencyclemap web site.

An international cycling map created from OSM data is available, provided by Andy Allan. The map rendering is still being improved, the data are updated every few days. It shows National Cycle Network cycle routes, other regional and local routes, and other cycling-specific features, such as:

dedicated cycle tracks and lanes

contours and hill colouring

bicycle parking

bike shops, toilets, drinking fountains, even pubs!

proposed bike routes (or numbering protocols), contrasted with the Lonvia map, below, which does not show proposed routes, but actual routes only